Exploring hydrogen-bond capable backbone and ligating topologies: Co(II) coordination polymers derived from mixed ligand systems
作者:D. Krishna Kumar、Amitava Das、Parthasarathi Dastidar
DOI:10.1016/j.molstruc.2006.02.033
日期:2006.8
β =100.161(2)°, Z =4 and a =10.6653(8) A, b =7.9952(6) A, c =24.7444(17) A, β =102.3790(10)°, Z =4, respectively. 3 crystallizes in monoclinic space group P 2 1 / c with a =11.6556(8) A, b =8.0359(6) A, c =23.6344(17) A, β =103.4040(10)° and Z =4. The metal centres in all the structures are hexacoordinated displaying slightly distorted octahedral geometry. Axial sites of the metal centres in all the
摘要 三种新型配位聚合物,即[Co(H 2 O) 2 (邻苯二甲酸酯)(μL1)]·2.36H 2 O} n 1 、[Co(H 2 O) 4 (μL2)Co(H 2 O) 2 (邻苯二甲酸酯) 2 ]·H 2 O} n 2 和[Co(H 2 O) 4 (μL3)Co(H 2 O) 2 (邻苯二甲酸酯) 2 ]·1.12H 2 O} n 3 [ L1 = N - (4-吡啶基)异烟酰胺, L2 = N -(3-吡啶基)异烟酰胺, L3 = N -(4-吡啶基)烟酰胺]已合成并通过单晶X射线衍射、元素分析、红外、X射线表征粉末衍射和热重分析。1 和 2 在单斜 P 2 1 / n 空间群中结晶,晶胞尺寸 a =8.2460(8) A, b =13.5199(14) A, c =19.609(2) A, β =100.161(2)°, Z = 4 和 a =10.6653(8) A, b =7